using System.Runtime.InteropServices;  public enum ERROR_ID  {   ERROR_SUCCESS = 0, // Success   ERROR_BUSY = 170,   ERROR_MORE_DATA = 234,   ERROR_NO_BROWSER_SERVERS_FOUND = 6118,   ERROR_INVALID_LEVEL = 124,   ERROR_ACCESS_DENIED = 5,   ERROR_INVALID_PASSWORD = 86,   ERROR_INVALID_PARAMETER = 87,   ERROR_BAD_DEV_TYPE = 66,   ERROR_NOT_ENOUGH_MEMORY = 8,   ERROR_NETWORK_BUSY = 54,   ERROR_BAD_NETPATH = 53,   ERROR_NO_NETWORK = 1222,   ERROR_INVALID_HANDLE_STATE = 1609,   ERROR_EXTENDED_ERROR = 1208,   ERROR_DEVICE_ALREADY_REMEMBERED = 1202,   ERROR_NO_NET_OR_BAD_PATH = 1203  }   public enum RESOURCE_SCOPE  {   RESOURCE_CONNECTED = 1,   RESOURCE_GLOBALNET = 2,   RESOURCE_REMEMBERED = 3,   RESOURCE_RECENT = 4,   RESOURCE_CONTEXT = 5  }   public enum RESOURCE_TYPE  {   RESOURCETYPE_ANY = 0,   RESOURCETYPE_DISK = 1,   RESOURCETYPE_PRINT = 2,   RESOURCETYPE_RESERVED = 8,  }   public enum RESOURCE_USAGE  {   RESOURCEUSAGE_CONNECTABLE = 1,   RESOURCEUSAGE_CONTAINER = 2,   RESOURCEUSAGE_NOLOCALDEVICE = 4,   RESOURCEUSAGE_SIBLING = 8,   RESOURCEUSAGE_ATTACHED = 16,   RESOURCEUSAGE_ALL = (RESOURCEUSAGE_CONNECTABLE | RESOURCEUSAGE_CONTAINER | RESOURCEUSAGE_ATTACHED),  }   public enum RESOURCE_DISPLAYTYPE  {   RESOURCEDISPLAYTYPE_GENERIC = 0,   RESOURCEDISPLAYTYPE_DOMAIN = 1,   RESOURCEDISPLAYTYPE_SERVER = 2,   RESOURCEDISPLAYTYPE_SHARE = 3,   RESOURCEDISPLAYTYPE_FILE = 4,   RESOURCEDISPLAYTYPE_GROUP = 5,   RESOURCEDISPLAYTYPE_NETWORK = 6,   RESOURCEDISPLAYTYPE_ROOT = 7,   RESOURCEDISPLAYTYPE_SHAREADMIN = 8,   RESOURCEDISPLAYTYPE_DIRECTORY = 9,   RESOURCEDISPLAYTYPE_TREE = 10,   RESOURCEDISPLAYTYPE_NDSCONTAINER = 11  }   [StructLayout(LayoutKind.Sequential)]  public struct NETRESOURCE  {   public RESOURCE_SCOPE dwScope;   public RESOURCE_TYPE dwType;   public RESOURCE_DISPLAYTYPE dwDisplayType;   public RESOURCE_USAGE dwUsage;    [MarshalAs(UnmanagedType.LPStr)]   public string lpLocalName;    [MarshalAs(UnmanagedType.LPStr)]   public string lpRemoteName;    [MarshalAs(UnmanagedType.LPStr)]   public string lpComment;    [MarshalAs(UnmanagedType.LPStr)]   public string lpProvider;  }   public class NetworkConnection  {    [DllImport("mpr.dll")]   public static extern int WNetAddConnection2A(NETRESOURCE[] lpNetResource, string lpPassword, string lpUserName, int dwFlags);    [DllImport("mpr.dll")]   public static extern int WNetCancelConnection2A(string sharename, int dwFlags, int fForce);     public static int Connect(string remotePath, string localPath, string username, string password)   {    NETRESOURCE[] share_driver = new NETRESOURCE[1];    share_driver[0].dwScope = RESOURCE_SCOPE.RESOURCE_GLOBALNET;    share_driver[0].dwType = RESOURCE_TYPE.RESOURCETYPE_DISK;    share_driver[0].dwDisplayType = RESOURCE_DISPLAYTYPE.RESOURCEDISPLAYTYPE_SHARE;    share_driver[0].dwUsage = RESOURCE_USAGE.RESOURCEUSAGE_CONNECTABLE;    share_driver[0].lpLocalName = localPath;    share_driver[0].lpRemoteName = remotePath;     Disconnect(localPath);    int ret = WNetAddConnection2A(share_driver, password, username, 1);     return ret;   }    public static int Disconnect(string localpath)   {    return WNetCancelConnection2A(localpath, 1, 1);   }  } 

public void TestNetWorkConnection()   {    string localpath = "X:";    //int status = NetworkConnection.Connect(@"//192.168.0.2/test", localpath, @"test", "test");    int status = NetworkConnection.Connect("////192.168.0.2//test", localpath, @"test", "test");    if (status == (int)ERROR_ID.ERROR_SUCCESS)    {     FileStream fs = new FileStream(localpath + @"//123.txt", FileMode.OpenOrCreate);     using (StreamWriter stream = new StreamWriter(fs))     {      stream.WriteLine("你好呀，成功了");      stream.Flush();      stream.Close();     }     fs.Close();    }    else    {     Console.WriteLine(status);    }    NetworkConnection.Disconnect(localpath);   }